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#include <stdio.h>
#include "cdi.h"
int
main(void)
{
enum
{
nlon = 12, // Number of longitudes
nlat = 6, // Number of latitudes
nlev = 5, // Number of levels
nts = 3, // Number of time steps
};
SizeType numMissVals = 0;
double var1[nlon * nlat];
double var2[nlon * nlat * nlev];
// Append a dataset (created by cdi_write)
int streamID = streamOpenAppend("example.nc");
if (streamID < 0)
{
fprintf(stderr, "%s\n", cdiStringError(streamID));
return 1;
}
// Get the variable list of the dataset
int vlistID = streamInqVlist(streamID);
int numVars = vlistNvars(vlistID);
if (numVars != 2)
{
fprintf(stderr, "Unexpected number of variables: %d\n", numVars);
return 1;
}
int varID1 = 0;
int varID2 = 1;
SizeType varSize1 = gridInqSize(vlistInqVarGrid(vlistID, varID1)) * zaxisInqSize(vlistInqVarZaxis(vlistID, varID1));
if (varSize1 != nlon * nlat)
{
fprintf(stderr, "Unexpected size of variable 1: %ld\n", (long) varSize1);
return 1;
}
SizeType varSize2 = gridInqSize(vlistInqVarGrid(vlistID, varID2)) * zaxisInqSize(vlistInqVarZaxis(vlistID, varID2));
if (varSize2 != nlon * nlat * nlev)
{
fprintf(stderr, "Unexpected size of variable 2: %ld\n", (long) varSize2);
return 1;
}
int taxisID = vlistInqTaxis(vlistID);
int nsteps = vlistNtsteps(vlistID);
printf("Number of timesteps: %d\n", nsteps);
// Loop over the number of time steps
for (int tsID = 0; tsID < nts; tsID++)
{
// Set the verification date to 1985-01-01 + tsID
taxisDefVdate(taxisID, 19850101 + nsteps + tsID);
// Set the verification time to 12:00:00
taxisDefVtime(taxisID, 120000);
// Define the time step
streamDefTimestep(streamID, nsteps + tsID);
// Init var1 and var2
for (size_t i = 0; i < nlon * nlat; i++) var1[i] = 1.1;
for (size_t i = 0; i < nlon * nlat * nlev; i++) var2[i] = 2.2;
// Write var1 and var2
streamWriteVar(streamID, varID1, var1, numMissVals);
streamWriteVar(streamID, varID2, var2, numMissVals);
}
// Close the output stream
streamClose(streamID);
return 0;
}
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